05000305/FIN-2010005-02
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Finding | |
|---|---|
| Title | Unacceptable Preconditoning of Safety-Related Pressure Switches |
| Description | A finding of very low significance and associated non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was identified by the inspectors for the failure to develop and implement an adequate surveillance test procedure to accurately assess the as-found trip setpoint for the pressure switches associated with the turbine building service water isolation function and various other safety-related functions. The licensee initiated condition report CR401813, performed an apparent cause evaluation, and initiated corrective actions to address the issues identified in the casual evaluation. The finding was determined to be more than minor in accordance with Inspection Manual Chapter (IMC) 0612, Power Reactor Inspection Reports, Appendix B, Issue Screening, dated December 24, 2009, because it was associated with the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences and affected the cornerstone attribute of Equipment Performance. The inspectors determined the finding could be evaluated using the Significance Determination Process (SDP) in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Phase 1 Initial Screening and Characterization of Findings, Tables 3b and 4a for the Mitigating Systems Cornerstone, dated January 10, 2008. The inspectors answered no to the Mitigating Systems questions and screened the finding as having very low significance (Green). This finding has a cross-cutting aspect in the area of problem identification and resolution, Operating Experience, because the licensee did not evaluate and communicate external operating experience to internal stakeholders in a timely manner (P.2(a)). |
| Site: | Kewaunee  |
|---|---|
| Report | IR 05000305/2010005 Section 1R15 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | M Kunowski R Krsek K Barclay P Cardona-Morales C Zoia R Winter J Jandovitz J Cassidy D Reeser M Phalen M Bielby D Passehl |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Kewaunee - IR 05000305/2010005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Kewaunee) @ 2010Q4
Self-Identified List (Kewaunee)
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